Question

A sailor goes 8km downstream in 40min and comes back in 1h. Find the speed of sailor in still ater and the speed of current

Answer 1

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Answer 2

Answer:

⇒ x + y = 12  

⇒ x - y = 8  

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⇒ 2x = 20,  

⇒ 2y = 4  

⇒ x = 10,  

⇒ y = 2  

⇒Speed of stream = 2 kmph, Speed of boat = 10 kmph